摘要：
Apple Push Notification ServiceApple Push Notification service (APNs for short) is the centerpiece(核心) of the push notifications feature. It is a robust（健壮的） and highly efficient service for propagating（传播） information to devices such as iPhone, iPad, and iPod touch devices. Each device establishes 阅读全文
posted @ 2012-04-19 10:26 星尘的天空 阅读(744) 评论(0) 推荐(0) 编辑